Hi, @Twyn
Thanks for posting, and welcome to the Roku Community.
I understand your concern regarding your subscription and accessibility on Paramount+, and I'm here to help.
If your Paramount+ subscription is through Roku, you can only access it on the Paramount+ channel within The Roku Channel. This subscription is not available through the stand-alone Paramount+ app.
For more information, you can access your subscription at this link: Paramount+ on The Roku Channel
I hope this helps, and let me know if you need further assistance.
Thanks,
The Roku Community Team.
Takashi O.
Roku Community Moderator